Buckling of cylindrical shells heated along two opposite generators combined with axial compression

A series of tests was carried out on clamped cylindrical shells under a combination of thermal and mechanical loads. The shells were linearly heated along two opposite generators in addition to a uniform axial pressure applied before the heating. The paper describes the test setup, equipment and techniques used. Systems for rapid measurement, data analysis and storage designed for the experimental work are presented. As an outcome of this study, a linear-interaction line is proposed in order to express the interaction between thermal-and mechanical-buckling loads.     

Stability of composite shells of revolution

An approach to solving the buckling problem for shells made of a composite material with one plane of elastic symmetry is presented. The approach employs complex Fourier series. The prebuckling stress-strain state is assumed to be geometrically nonlinear. The stability of a cylindrical shell under axial compression and uniform side pressure is analyzed using the Runge-Kutta method with discrete orthogonalization. The numerical results are compared with analytical solutions __________ Translated from Prikladnaya Mekhanika, Vol. 44, No. 3, pp. 109–124, March 2008.     

Stability of cylindrical shells with one plane of elastic symmetry under axial compression and torsion

A numerical technique is developed for stability analysis of laminated cylindrical shells with one plane of symmetry subject to axial compression and torsion. Shells filament-wound in directions other than the coordinate axes are considered as a special case. These shells are analyzed for stability under axial compression, external pressure, and torsion. It is shown that shells with a great number of plies and different ply angles may be considered orthotropic __________ Translated from Prikladnaya Mekhanika, Vol. 42, No. 8, pp. 115–121, August 2006.     

Stability of shallow anisotropic shells of revolution

The paper outlines a method of analyzing layered anisotropic shells of revolution for stability using complex Fourier series. This simplifies the derivation of the basic equations compared with complete trigonometric Fourier series. Anisotropic shells in the form of a torus segment are analyzed for stability. This method allows optimizing the structure of the material and the geometry of the shell